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"Classic 8W" UV Bulb Replacement Rated for 12-14 Months Continuous Use (for Aqua Ultraviolet “Classic 8W” UV Sterilizer Unit)
"Classic 8W" UV Bulb Replacement Rated for 12-14 Months Continuous Use (for Aqua Ultraviolet “Classic 8W” UV Sterilizer Unit)

"Classic 8W" UV Bulb Replacement Rated for 12-14 Months Continuous Use (for Aqua Ultraviolet “Classic 8W” UV Sterilizer Unit)

Brand: Aqua Ultraviolet

Regular price $50.99 On Sale

Only 17 left in stock!

Estimated Arrival: Between Jan 28 and Feb 03. *ETA for USA only. For accurate lead times, call us at 727-214-7750

Large, Custom, Or Backorder: Arrival Times May Vary.

Shipping Policy: Little or No Shipping Charges for Regular-Sized Items; We Cover Part of the Freight Costs for Large Items Shipped Nationally. See Shipping Policy.

Bulb Length: 11½"L

Use Time Rating: 8,000 Hours / 12-14 Months Continuous Use

Function: Stunt and control the growth and spread of bacteria, algae, viruses, and pathogens for clearer and more polished aquarium water, and a healthier and more balanced aquatic ecosystem for our fish and corals.


  • One of the highest respected and long-term trusted brands in the global water sterilization industry, delivering water solutions for over 40 years
  • 100% U.S. manufactured in Southern California
  • Highest quality UV bulb for any sterilizer
    • Rated for 8,000 hours or 14 months of continuous and reliable use
    • All 4 pins on one side of bulb for easy slide-in and plug-in installation


  • These bulbs are rated for 8,000 hours or 12-14 months of continuous use. As with all UV bulbs, it is best to have a spare replacement bulb on hand before the end of the lifespan of the light in use. Two Tides always recommends when the 10-11 month rolls around, it's best to get a replacement so that we aren't stuck in a situation where the lamp burns out, and we don't realize it until one of our prized fish gets an infection and we can't prevent the infection from spreading until the bulb we need is both in stock and after shipping time (we speak from personal experience).

      Here is a step-by-step UV Bulb Replacement Guide as well as a Quartz Sleeve Replacement Guide for the Aqua Ultraviolet Classic Series. Two Tides recommends replacing these UV bulbs  every 12-14 months, and the Quartz Sleeves either every 2-3 years. Also clean the sleeve if it ever turns yellow or brown (due to buildup), or if you notice a reduction in performance of the unit, making sure to wipe it off  thoroughly with alcohol afterwards. After bulbs, dirty sleeves are the biggest culprit of performance reduction. If the buildup is too much to clean, replace the sleeve. Broken Quartz isn't fun to clean up.

      Have any further questions that aren't answered here? We'd love to hear from you, and learn how we can help you be as successful as possible in this wonderful hobby.

      You can call in to 727-214-7750 to speak with Tyler from our team to determine how to create your Ideal Aquarium Build.

      Also feel free to reach out to us at and we will aim to respond back within the next few hours.


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      ★ Read Reviews of Two Tides

      The Proof is in the Result

      27 reviews

      So...late one night I was shopping online for a new seahorse tank. I ended up on the Two Tides website & in the bottom corner it said to click for a live chat. Since it was after midnight & they’re in the same time zone, I thought no way. But I clicked anyway & sure enough I was chatting with a live person! We chatted for over an hour until he asked for my email address telling me I’d be contacted the next day. That’s when I met Tyler. He helped me with my purchase. He went above & beyond to get me the tank I wanted, even spending a day on a video chat with Pro Clear Aquatics as they searched their warehouse looking for the aquarium I wanted with a blue back. They stopped making these a while back but they found one for me! I absolutely love this aquarium & I can honestly say that Tyler provided THE best customer service I have ever experienced from an online vendor. He told me from the start that he would stay with me from start to finish & he did. He was always there to promptly answer any questions or concerns I had. I can’t say enough about how happy I am with my purchase!

      Piece of Art

      I was looking for rimless peninsula aquarium to upgrade my 80 Gallon and my 70 Gallon mixed coral reef this year, but had a really hard time finding it because of the coronavirus. So I purchased a ProStar 230 Peninsula from Two Tides and I’m glad I made the right choice. The 3/4” low Iron glass display tank and large glass sump and light weight white stand is just beautiful as a piece of art. Tyler is extremely helpful and responsive and made the process easy and stress free. Everything arrived very well packaged. When we were setting up the tank, we couldn’t believe how easy the setup was with no issues what so ever. If you are looking for a high quality aquarium I highly recommend this company.

      Absolutely beautiful fish tank and customer services

      I am very happy with my order. The tank is very beautiful of out the box and it was well packaging with feel very safe from shipping damage.

      Custom services from Two Tides Aquarium Supply was excellent. I have communicated with Tyler who had assisted me throughout the process from ordering the tank through shipping process, and what to expect on delivery day.

      I am highly recommend anyone who want to get a new aquarium, to purchase from Two Tides Aquarium. Best to look for Tyler, he is a very helpful and pleasing person to contact if you have any question. I am glad that I have met him and definitely I would buy again in the future from Two Tides Aquarium supply when I need another fish tank and any other aquarium supply that I may need.

      Thank you very much for a beautiful tank.


      Great Customer Service

      I am very pleased with not only the product I received but the service that came with it. Tyler was in constant contact with me throughout each stage of the process. He answered all questions I had and was even able to provide me with links to plumbing parts I needed for the build. We had a small hiccup with shipping (carrier's fault not Two Tides) but Tyler was able to update me throughout the day. Tyler genuinely cares about his customers and I would recommend the company to anyone looking for their next show room tank!

      Great unit

      Makes water quickly. Very happy with the unit so far. Pump is quiet, runs great. Finally decided to get a good rodi system. This one has exceeded my expectations way better then any other unit that I've had before. TwoTides Aquarium supply shipped it fast and couldn't be happier with this unit.